21347430

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{431}}^1$

素因数の和:581

約数の個数: 64

約数和(自身を含む): 55738368

約数和(自身を除く): 34390938

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 127, 130, 195, 254, 381, 390, 431, 635, 762, 862, 1270, 1293, 1651, 1905, 2155, 2586, 3302, 3810, 4310, 4953, 5603, 6465, 8255, 9906, 11206, 12930, 16510, 16809, 24765, 28015, 33618, 49530, 54737, 56030, 84045, 109474, 164211, 168090, 273685, 328422, 547370, 711581, 821055, 1423162, 1642110, 2134743, 3557905, 4269486, 7115810, 10673715, 21347430]

約数ペア:

[(1, 21347430), (2, 10673715), (3, 7115810), (5, 4269486), (6, 3557905), (10, 2134743), (13, 1642110), (15, 1423162), (26, 821055), (30, 711581), (39, 547370), (65, 328422), (78, 273685), (127, 168090), (130, 164211), (195, 109474), (254, 84045), (381, 56030), (390, 54737), (431, 49530), (635, 33618), (762, 28015), (862, 24765), (1270, 16809), (1293, 16510), (1651, 12930), (1905, 11206), (2155, 9906), (2586, 8255), (3302, 6465), (3810, 5603), (4310, 4953)]