21454510

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{149}}^1$

素因数の和:202

約数の個数: 96

約数和(自身を含む): 51710400

約数和(自身を除く): 30255890

約数列:

[1, 2, 5, 7, 10, 11, 14, 17, 22, 34, 35, 55, 70, 77, 85, 110, 119, 121, 149, 154, 170, 187, 238, 242, 298, 374, 385, 595, 605, 745, 770, 847, 935, 1043, 1190, 1210, 1309, 1490, 1639, 1694, 1870, 2057, 2086, 2533, 2618, 3278, 4114, 4235, 5066, 5215, 6545, 8195, 8470, 10285, 10430, 11473, 12665, 13090, 14399, 16390, 17731, 18029, 20570, 22946, 25330, 27863, 28798, 35462, 36058, 55726, 57365, 71995, 88655, 90145, 114730, 126203, 139315, 143990, 177310, 180290, 195041, 252406, 278630, 306493, 390082, 612986, 631015, 975205, 1262030, 1532465, 1950410, 2145451, 3064930, 4290902, 10727255, 21454510]

約数ペア:

[(1, 21454510), (2, 10727255), (5, 4290902), (7, 3064930), (10, 2145451), (11, 1950410), (14, 1532465), (17, 1262030), (22, 975205), (34, 631015), (35, 612986), (55, 390082), (70, 306493), (77, 278630), (85, 252406), (110, 195041), (119, 180290), (121, 177310), (149, 143990), (154, 139315), (170, 126203), (187, 114730), (238, 90145), (242, 88655), (298, 71995), (374, 57365), (385, 55726), (595, 36058), (605, 35462), (745, 28798), (770, 27863), (847, 25330), (935, 22946), (1043, 20570), (1190, 18029), (1210, 17731), (1309, 16390), (1490, 14399), (1639, 13090), (1694, 12665), (1870, 11473), (2057, 10430), (2086, 10285), (2533, 8470), (2618, 8195), (3278, 6545), (4114, 5215), (4235, 5066)]