21454188

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:207

約数の個数: 96

約数和(自身を含む): 59996160

約数和(自身を除く): 38541972

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 53, 61, 79, 84, 106, 122, 158, 159, 183, 212, 237, 244, 316, 318, 366, 371, 427, 474, 553, 636, 732, 742, 854, 948, 1106, 1113, 1281, 1484, 1659, 1708, 2212, 2226, 2562, 3233, 3318, 4187, 4452, 4819, 5124, 6466, 6636, 8374, 9638, 9699, 12561, 12932, 14457, 16748, 19276, 19398, 22631, 25122, 28914, 29309, 33733, 38796, 45262, 50244, 57828, 58618, 67466, 67893, 87927, 90524, 101199, 117236, 134932, 135786, 175854, 202398, 255407, 271572, 351708, 404796, 510814, 766221, 1021628, 1532442, 1787849, 3064884, 3575698, 5363547, 7151396, 10727094, 21454188]

約数ペア:

[(1, 21454188), (2, 10727094), (3, 7151396), (4, 5363547), (6, 3575698), (7, 3064884), (12, 1787849), (14, 1532442), (21, 1021628), (28, 766221), (42, 510814), (53, 404796), (61, 351708), (79, 271572), (84, 255407), (106, 202398), (122, 175854), (158, 135786), (159, 134932), (183, 117236), (212, 101199), (237, 90524), (244, 87927), (316, 67893), (318, 67466), (366, 58618), (371, 57828), (427, 50244), (474, 45262), (553, 38796), (636, 33733), (732, 29309), (742, 28914), (854, 25122), (948, 22631), (1106, 19398), (1113, 19276), (1281, 16748), (1484, 14457), (1659, 12932), (1708, 12561), (2212, 9699), (2226, 9638), (2562, 8374), (3233, 6636), (3318, 6466), (4187, 5124), (4452, 4819)]