21334140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:172

約数の個数: 144

約数和(自身を含む): 69058080

約数和(自身を除く): 47723940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 61, 67, 87, 90, 116, 122, 134, 145, 174, 180, 183, 201, 244, 261, 268, 290, 305, 335, 348, 366, 402, 435, 522, 549, 580, 603, 610, 670, 732, 804, 870, 915, 1005, 1044, 1098, 1206, 1220, 1305, 1340, 1740, 1769, 1830, 1943, 2010, 2196, 2412, 2610, 2745, 3015, 3538, 3660, 3886, 4020, 4087, 5220, 5307, 5490, 5829, 6030, 7076, 7772, 8174, 8845, 9715, 10614, 10980, 11658, 12060, 12261, 15921, 16348, 17487, 17690, 19430, 20435, 21228, 23316, 24522, 26535, 29145, 31842, 34974, 35380, 36783, 38860, 40870, 49044, 53070, 58290, 61305, 63684, 69948, 73566, 79605, 81740, 87435, 106140, 116580, 118523, 122610, 147132, 159210, 174870, 183915, 237046, 245220, 318420, 349740, 355569, 367830, 474092, 592615, 711138, 735660, 1066707, 1185230, 1422276, 1777845, 2133414, 2370460, 3555690, 4266828, 5333535, 7111380, 10667070, 21334140]

約数ペア:

[(1, 21334140), (2, 10667070), (3, 7111380), (4, 5333535), (5, 4266828), (6, 3555690), (9, 2370460), (10, 2133414), (12, 1777845), (15, 1422276), (18, 1185230), (20, 1066707), (29, 735660), (30, 711138), (36, 592615), (45, 474092), (58, 367830), (60, 355569), (61, 349740), (67, 318420), (87, 245220), (90, 237046), (116, 183915), (122, 174870), (134, 159210), (145, 147132), (174, 122610), (180, 118523), (183, 116580), (201, 106140), (244, 87435), (261, 81740), (268, 79605), (290, 73566), (305, 69948), (335, 63684), (348, 61305), (366, 58290), (402, 53070), (435, 49044), (522, 40870), (549, 38860), (580, 36783), (603, 35380), (610, 34974), (670, 31842), (732, 29145), (804, 26535), (870, 24522), (915, 23316), (1005, 21228), (1044, 20435), (1098, 19430), (1206, 17690), (1220, 17487), (1305, 16348), (1340, 15921), (1740, 12261), (1769, 12060), (1830, 11658), (1943, 10980), (2010, 10614), (2196, 9715), (2412, 8845), (2610, 8174), (2745, 7772), (3015, 7076), (3538, 6030), (3660, 5829), (3886, 5490), (4020, 5307), (4087, 5220)]