16981790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:213

約数の個数: 64

約数和(自身を含む): 36747648

約数和(自身を除く): 19765858

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 61, 70, 82, 97, 122, 194, 205, 287, 305, 410, 427, 485, 574, 610, 679, 854, 970, 1358, 1435, 2135, 2501, 2870, 3395, 3977, 4270, 5002, 5917, 6790, 7954, 11834, 12505, 17507, 19885, 25010, 27839, 29585, 35014, 39770, 41419, 55678, 59170, 82838, 87535, 139195, 175070, 207095, 242597, 278390, 414190, 485194, 1212985, 1698179, 2425970, 3396358, 8490895, 16981790]

約数ペア:

[(1, 16981790), (2, 8490895), (5, 3396358), (7, 2425970), (10, 1698179), (14, 1212985), (35, 485194), (41, 414190), (61, 278390), (70, 242597), (82, 207095), (97, 175070), (122, 139195), (194, 87535), (205, 82838), (287, 59170), (305, 55678), (410, 41419), (427, 39770), (485, 35014), (574, 29585), (610, 27839), (679, 25010), (854, 19885), (970, 17507), (1358, 12505), (1435, 11834), (2135, 7954), (2501, 6790), (2870, 5917), (3395, 5002), (3977, 4270)]