20487618

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:160

約数の個数: 96

約数和(自身を含む): 50948352

約数和(自身を除く): 30460734

約数列:

[1, 2, 3, 6, 9, 17, 18, 23, 34, 41, 46, 51, 69, 71, 82, 102, 123, 138, 142, 153, 207, 213, 246, 306, 369, 391, 414, 426, 639, 697, 738, 782, 943, 1173, 1207, 1278, 1394, 1633, 1886, 2091, 2346, 2414, 2829, 2911, 3266, 3519, 3621, 4182, 4899, 5658, 5822, 6273, 7038, 7242, 8487, 8733, 9798, 10863, 12546, 14697, 16031, 16974, 17466, 21726, 26199, 27761, 29394, 32062, 48093, 49487, 52398, 55522, 66953, 83283, 96186, 98974, 133906, 144279, 148461, 166566, 200859, 249849, 288558, 296922, 401718, 445383, 499698, 602577, 890766, 1138201, 1205154, 2276402, 3414603, 6829206, 10243809, 20487618]

約数ペア:

[(1, 20487618), (2, 10243809), (3, 6829206), (6, 3414603), (9, 2276402), (17, 1205154), (18, 1138201), (23, 890766), (34, 602577), (41, 499698), (46, 445383), (51, 401718), (69, 296922), (71, 288558), (82, 249849), (102, 200859), (123, 166566), (138, 148461), (142, 144279), (153, 133906), (207, 98974), (213, 96186), (246, 83283), (306, 66953), (369, 55522), (391, 52398), (414, 49487), (426, 48093), (639, 32062), (697, 29394), (738, 27761), (782, 26199), (943, 21726), (1173, 17466), (1207, 16974), (1278, 16031), (1394, 14697), (1633, 12546), (1886, 10863), (2091, 9798), (2346, 8733), (2414, 8487), (2829, 7242), (2911, 7038), (3266, 6273), (3519, 5822), (3621, 5658), (4182, 4899)]