21759430

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{367}}^1$

素因数の和:410

約数の個数: 72

約数和(自身を含む): 50216544

約数和(自身を除く): 28457114

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 49, 55, 70, 77, 98, 110, 121, 154, 242, 245, 367, 385, 490, 539, 605, 734, 770, 847, 1078, 1210, 1694, 1835, 2569, 2695, 3670, 4037, 4235, 5138, 5390, 5929, 8074, 8470, 11858, 12845, 17983, 20185, 25690, 28259, 29645, 35966, 40370, 44407, 56518, 59290, 88814, 89915, 141295, 179830, 197813, 222035, 282590, 310849, 395626, 444070, 621698, 989065, 1554245, 1978130, 2175943, 3108490, 4351886, 10879715, 21759430]

約数ペア:

[(1, 21759430), (2, 10879715), (5, 4351886), (7, 3108490), (10, 2175943), (11, 1978130), (14, 1554245), (22, 989065), (35, 621698), (49, 444070), (55, 395626), (70, 310849), (77, 282590), (98, 222035), (110, 197813), (121, 179830), (154, 141295), (242, 89915), (245, 88814), (367, 59290), (385, 56518), (490, 44407), (539, 40370), (605, 35966), (734, 29645), (770, 28259), (847, 25690), (1078, 20185), (1210, 17983), (1694, 12845), (1835, 11858), (2569, 8470), (2695, 8074), (3670, 5929), (4037, 5390), (4235, 5138)]