21167473660

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{59}}^2\times {\mathrm{6469}}^1$

素因数の和:6643

約数の個数: 72

約数和(自身を含む): 46187104320

約数和(自身を除く): 25019630660

約数列:

[1, 2, 4, 5, 10, 20, 47, 59, 94, 118, 188, 235, 236, 295, 470, 590, 940, 1180, 2773, 3481, 5546, 6469, 6962, 11092, 12938, 13865, 13924, 17405, 25876, 27730, 32345, 34810, 55460, 64690, 69620, 129380, 163607, 304043, 327214, 381671, 608086, 654428, 763342, 818035, 1216172, 1520215, 1526684, 1636070, 1908355, 3040430, 3272140, 3816710, 6080860, 7633420, 17938537, 22518589, 35877074, 45037178, 71754148, 89692685, 90074356, 112592945, 179385370, 225185890, 358770740, 450371780, 1058373683, 2116747366, 4233494732, 5291868415, 10583736830, 21167473660]

約数ペア:

[(1, 21167473660), (2, 10583736830), (4, 5291868415), (5, 4233494732), (10, 2116747366), (20, 1058373683), (47, 450371780), (59, 358770740), (94, 225185890), (118, 179385370), (188, 112592945), (235, 90074356), (236, 89692685), (295, 71754148), (470, 45037178), (590, 35877074), (940, 22518589), (1180, 17938537), (2773, 7633420), (3481, 6080860), (5546, 3816710), (6469, 3272140), (6962, 3040430), (11092, 1908355), (12938, 1636070), (13865, 1526684), (13924, 1520215), (17405, 1216172), (25876, 818035), (27730, 763342), (32345, 654428), (34810, 608086), (55460, 381671), (64690, 327214), (69620, 304043), (129380, 163607)]