16921268

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{229}}^1$

素因数の和:289

約数の個数: 72

約数和(自身を含む): 38543400

約数和(自身を除く): 21622132

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 29, 49, 52, 58, 91, 98, 116, 182, 196, 203, 229, 364, 377, 406, 458, 637, 754, 812, 916, 1274, 1421, 1508, 1603, 2548, 2639, 2842, 2977, 3206, 5278, 5684, 5954, 6412, 6641, 10556, 11221, 11908, 13282, 18473, 20839, 22442, 26564, 36946, 41678, 44884, 46487, 73892, 83356, 86333, 92974, 145873, 172666, 185948, 291746, 325409, 345332, 583492, 604331, 650818, 1208662, 1301636, 2417324, 4230317, 8460634, 16921268]

約数ペア:

[(1, 16921268), (2, 8460634), (4, 4230317), (7, 2417324), (13, 1301636), (14, 1208662), (26, 650818), (28, 604331), (29, 583492), (49, 345332), (52, 325409), (58, 291746), (91, 185948), (98, 172666), (116, 145873), (182, 92974), (196, 86333), (203, 83356), (229, 73892), (364, 46487), (377, 44884), (406, 41678), (458, 36946), (637, 26564), (754, 22442), (812, 20839), (916, 18473), (1274, 13282), (1421, 11908), (1508, 11221), (1603, 10556), (2548, 6641), (2639, 6412), (2842, 5954), (2977, 5684), (3206, 5278)]