21965190

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3313}}^1$

素因数の和:3353

約数の個数: 64

約数和(自身を含む): 60129216

約数和(自身を除く): 38164026

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 17, 26, 30, 34, 39, 51, 65, 78, 85, 102, 130, 170, 195, 221, 255, 390, 442, 510, 663, 1105, 1326, 2210, 3313, 3315, 6626, 6630, 9939, 16565, 19878, 33130, 43069, 49695, 56321, 86138, 99390, 112642, 129207, 168963, 215345, 258414, 281605, 337926, 430690, 563210, 646035, 732173, 844815, 1292070, 1464346, 1689630, 2196519, 3660865, 4393038, 7321730, 10982595, 21965190]

約数ペア:

[(1, 21965190), (2, 10982595), (3, 7321730), (5, 4393038), (6, 3660865), (10, 2196519), (13, 1689630), (15, 1464346), (17, 1292070), (26, 844815), (30, 732173), (34, 646035), (39, 563210), (51, 430690), (65, 337926), (78, 281605), (85, 258414), (102, 215345), (130, 168963), (170, 129207), (195, 112642), (221, 99390), (255, 86138), (390, 56321), (442, 49695), (510, 43069), (663, 33130), (1105, 19878), (1326, 16565), (2210, 9939), (3313, 6630), (3315, 6626)]