21753780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{239}}^1$

素因数の和:329

約数の個数: 96

約数和(自身を含む): 64350720

約数和(自身を除く): 42596940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 37, 41, 60, 74, 82, 111, 123, 148, 164, 185, 205, 222, 239, 246, 370, 410, 444, 478, 492, 555, 615, 717, 740, 820, 956, 1110, 1195, 1230, 1434, 1517, 2220, 2390, 2460, 2868, 3034, 3585, 4551, 4780, 6068, 7170, 7585, 8843, 9102, 9799, 14340, 15170, 17686, 18204, 19598, 22755, 26529, 29397, 30340, 35372, 39196, 44215, 45510, 48995, 53058, 58794, 88430, 91020, 97990, 106116, 117588, 132645, 146985, 176860, 195980, 265290, 293970, 362563, 530580, 587940, 725126, 1087689, 1450252, 1812815, 2175378, 3625630, 4350756, 5438445, 7251260, 10876890, 21753780]

約数ペア:

[(1, 21753780), (2, 10876890), (3, 7251260), (4, 5438445), (5, 4350756), (6, 3625630), (10, 2175378), (12, 1812815), (15, 1450252), (20, 1087689), (30, 725126), (37, 587940), (41, 530580), (60, 362563), (74, 293970), (82, 265290), (111, 195980), (123, 176860), (148, 146985), (164, 132645), (185, 117588), (205, 106116), (222, 97990), (239, 91020), (246, 88430), (370, 58794), (410, 53058), (444, 48995), (478, 45510), (492, 44215), (555, 39196), (615, 35372), (717, 30340), (740, 29397), (820, 26529), (956, 22755), (1110, 19598), (1195, 18204), (1230, 17686), (1434, 15170), (1517, 14340), (2220, 9799), (2390, 9102), (2460, 8843), (2868, 7585), (3034, 7170), (3585, 6068), (4551, 4780)]