21978744

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{307}}^1$

素因数の和:492

約数の個数: 64

約数和(自身を含む): 58396800

約数和(自身を除く): 36418056

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 152, 157, 228, 307, 314, 456, 471, 614, 628, 921, 942, 1228, 1256, 1842, 1884, 2456, 2983, 3684, 3768, 5833, 5966, 7368, 8949, 11666, 11932, 17499, 17898, 23332, 23864, 34998, 35796, 46664, 48199, 69996, 71592, 96398, 139992, 144597, 192796, 289194, 385592, 578388, 915781, 1156776, 1831562, 2747343, 3663124, 5494686, 7326248, 10989372, 21978744]

約数ペア:

[(1, 21978744), (2, 10989372), (3, 7326248), (4, 5494686), (6, 3663124), (8, 2747343), (12, 1831562), (19, 1156776), (24, 915781), (38, 578388), (57, 385592), (76, 289194), (114, 192796), (152, 144597), (157, 139992), (228, 96398), (307, 71592), (314, 69996), (456, 48199), (471, 46664), (614, 35796), (628, 34998), (921, 23864), (942, 23332), (1228, 17898), (1256, 17499), (1842, 11932), (1884, 11666), (2456, 8949), (2983, 7368), (3684, 5966), (3768, 5833)]