21964310

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:185

約数の個数: 64

約数和(自身を含む): 44323200

約数和(自身を除く): 22358890

約数列:

[1, 2, 5, 10, 23, 29, 37, 46, 58, 74, 89, 115, 145, 178, 185, 230, 290, 370, 445, 667, 851, 890, 1073, 1334, 1702, 2047, 2146, 2581, 3293, 3335, 4094, 4255, 5162, 5365, 6586, 6670, 8510, 10235, 10730, 12905, 16465, 20470, 24679, 25810, 32930, 49358, 59363, 75739, 95497, 118726, 123395, 151478, 190994, 246790, 296815, 378695, 477485, 593630, 757390, 954970, 2196431, 4392862, 10982155, 21964310]

約数ペア:

[(1, 21964310), (2, 10982155), (5, 4392862), (10, 2196431), (23, 954970), (29, 757390), (37, 593630), (46, 477485), (58, 378695), (74, 296815), (89, 246790), (115, 190994), (145, 151478), (178, 123395), (185, 118726), (230, 95497), (290, 75739), (370, 59363), (445, 49358), (667, 32930), (851, 25810), (890, 24679), (1073, 20470), (1334, 16465), (1702, 12905), (2047, 10730), (2146, 10235), (2581, 8510), (3293, 6670), (3335, 6586), (4094, 5365), (4255, 5162)]