21693180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:259

約数の個数: 96

約数和(自身を含む): 63866880

約数和(自身を除く): 42173700

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 107, 109, 124, 155, 186, 214, 218, 310, 321, 327, 372, 428, 436, 465, 535, 545, 620, 642, 654, 930, 1070, 1090, 1284, 1308, 1605, 1635, 1860, 2140, 2180, 3210, 3270, 3317, 3379, 6420, 6540, 6634, 6758, 9951, 10137, 11663, 13268, 13516, 16585, 16895, 19902, 20274, 23326, 33170, 33790, 34989, 39804, 40548, 46652, 49755, 50685, 58315, 66340, 67580, 69978, 99510, 101370, 116630, 139956, 174945, 199020, 202740, 233260, 349890, 361553, 699780, 723106, 1084659, 1446212, 1807765, 2169318, 3615530, 4338636, 5423295, 7231060, 10846590, 21693180]

約数ペア:

[(1, 21693180), (2, 10846590), (3, 7231060), (4, 5423295), (5, 4338636), (6, 3615530), (10, 2169318), (12, 1807765), (15, 1446212), (20, 1084659), (30, 723106), (31, 699780), (60, 361553), (62, 349890), (93, 233260), (107, 202740), (109, 199020), (124, 174945), (155, 139956), (186, 116630), (214, 101370), (218, 99510), (310, 69978), (321, 67580), (327, 66340), (372, 58315), (428, 50685), (436, 49755), (465, 46652), (535, 40548), (545, 39804), (620, 34989), (642, 33790), (654, 33170), (930, 23326), (1070, 20274), (1090, 19902), (1284, 16895), (1308, 16585), (1605, 13516), (1635, 13268), (1860, 11663), (2140, 10137), (2180, 9951), (3210, 6758), (3270, 6634), (3317, 6540), (3379, 6420)]