21354784

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1$

素因数の和:174

約数の個数: 96

約数和(自身を含む): 50319360

約数和(自身を除く): 28964576

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 31, 32, 38, 44, 62, 76, 88, 103, 124, 152, 176, 206, 209, 248, 304, 341, 352, 412, 418, 496, 589, 608, 682, 824, 836, 992, 1133, 1178, 1364, 1648, 1672, 1957, 2266, 2356, 2728, 3193, 3296, 3344, 3914, 4532, 4712, 5456, 6386, 6479, 6688, 7828, 9064, 9424, 10912, 12772, 12958, 15656, 18128, 18848, 21527, 25544, 25916, 31312, 35123, 36256, 43054, 51088, 51832, 60667, 62624, 70246, 86108, 102176, 103664, 121334, 140492, 172216, 207328, 242668, 280984, 344432, 485336, 561968, 667337, 688864, 970672, 1123936, 1334674, 1941344, 2669348, 5338696, 10677392, 21354784]

約数ペア:

[(1, 21354784), (2, 10677392), (4, 5338696), (8, 2669348), (11, 1941344), (16, 1334674), (19, 1123936), (22, 970672), (31, 688864), (32, 667337), (38, 561968), (44, 485336), (62, 344432), (76, 280984), (88, 242668), (103, 207328), (124, 172216), (152, 140492), (176, 121334), (206, 103664), (209, 102176), (248, 86108), (304, 70246), (341, 62624), (352, 60667), (412, 51832), (418, 51088), (496, 43054), (589, 36256), (608, 35123), (682, 31312), (824, 25916), (836, 25544), (992, 21527), (1133, 18848), (1178, 18128), (1364, 15656), (1648, 12958), (1672, 12772), (1957, 10912), (2266, 9424), (2356, 9064), (2728, 7828), (3193, 6688), (3296, 6479), (3344, 6386), (3914, 5456), (4532, 4712)]