21419992

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{557}}^1$

素因数の和:616

約数の個数: 64

約数和(自身を含む): 48211200

約数和(自身を除く): 26791208

約数列:

[1, 2, 4, 8, 11, 19, 22, 23, 38, 44, 46, 76, 88, 92, 152, 184, 209, 253, 418, 437, 506, 557, 836, 874, 1012, 1114, 1672, 1748, 2024, 2228, 3496, 4456, 4807, 6127, 9614, 10583, 12254, 12811, 19228, 21166, 24508, 25622, 38456, 42332, 49016, 51244, 84664, 102488, 116413, 140921, 232826, 243409, 281842, 465652, 486818, 563684, 931304, 973636, 1127368, 1947272, 2677499, 5354998, 10709996, 21419992]

約数ペア:

[(1, 21419992), (2, 10709996), (4, 5354998), (8, 2677499), (11, 1947272), (19, 1127368), (22, 973636), (23, 931304), (38, 563684), (44, 486818), (46, 465652), (76, 281842), (88, 243409), (92, 232826), (152, 140921), (184, 116413), (209, 102488), (253, 84664), (418, 51244), (437, 49016), (506, 42332), (557, 38456), (836, 25622), (874, 24508), (1012, 21166), (1114, 19228), (1672, 12811), (1748, 12254), (2024, 10583), (2228, 9614), (3496, 6127), (4456, 4807)]