21098805

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1$

素因数の和:111

約数の個数: 96

約数和(自身を含む): 44271360

約数和(自身を除く): 23172555

約数列:

[1, 3, 5, 7, 13, 15, 21, 29, 35, 39, 41, 65, 87, 91, 105, 123, 145, 169, 195, 203, 205, 273, 287, 377, 435, 455, 507, 533, 609, 615, 845, 861, 1015, 1131, 1183, 1189, 1365, 1435, 1599, 1885, 2535, 2639, 2665, 3045, 3549, 3567, 3731, 4305, 4901, 5655, 5915, 5945, 6929, 7917, 7995, 8323, 11193, 13195, 14703, 15457, 17745, 17835, 18655, 20787, 24505, 24969, 34307, 34645, 39585, 41615, 46371, 48503, 55965, 73515, 77285, 102921, 103935, 108199, 124845, 145509, 171535, 200941, 231855, 242515, 324597, 514605, 540995, 602823, 727545, 1004705, 1406587, 1622985, 3014115, 4219761, 7032935, 21098805]

約数ペア:

[(1, 21098805), (3, 7032935), (5, 4219761), (7, 3014115), (13, 1622985), (15, 1406587), (21, 1004705), (29, 727545), (35, 602823), (39, 540995), (41, 514605), (65, 324597), (87, 242515), (91, 231855), (105, 200941), (123, 171535), (145, 145509), (169, 124845), (195, 108199), (203, 103935), (205, 102921), (273, 77285), (287, 73515), (377, 55965), (435, 48503), (455, 46371), (507, 41615), (533, 39585), (609, 34645), (615, 34307), (845, 24969), (861, 24505), (1015, 20787), (1131, 18655), (1183, 17835), (1189, 17745), (1365, 15457), (1435, 14703), (1599, 13195), (1885, 11193), (2535, 8323), (2639, 7995), (2665, 7917), (3045, 6929), (3549, 5945), (3567, 5915), (3731, 5655), (4305, 4901)]