21244128

素因数分解:

$2^5\times 3^1\times {\mathrm{19}}^2\times {\mathrm{613}}^1$

素因数の和:664

約数の個数: 72

約数和(自身を含む): 58951368

約数和(自身を除く): 37707240

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 32, 38, 48, 57, 76, 96, 114, 152, 228, 304, 361, 456, 608, 613, 722, 912, 1083, 1226, 1444, 1824, 1839, 2166, 2452, 2888, 3678, 4332, 4904, 5776, 7356, 8664, 9808, 11552, 11647, 14712, 17328, 19616, 23294, 29424, 34656, 34941, 46588, 58848, 69882, 93176, 139764, 186352, 221293, 279528, 372704, 442586, 559056, 663879, 885172, 1118112, 1327758, 1770344, 2655516, 3540688, 5311032, 7081376, 10622064, 21244128]

約数ペア:

[(1, 21244128), (2, 10622064), (3, 7081376), (4, 5311032), (6, 3540688), (8, 2655516), (12, 1770344), (16, 1327758), (19, 1118112), (24, 885172), (32, 663879), (38, 559056), (48, 442586), (57, 372704), (76, 279528), (96, 221293), (114, 186352), (152, 139764), (228, 93176), (304, 69882), (361, 58848), (456, 46588), (608, 34941), (613, 34656), (722, 29424), (912, 23294), (1083, 19616), (1226, 17328), (1444, 14712), (1824, 11647), (1839, 11552), (2166, 9808), (2452, 8664), (2888, 7356), (3678, 5776), (4332, 4904)]