21638370

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{491}}^1$

素因数の和:627

約数の個数: 64

約数和(自身を含む): 56536704

約数和(自身を除く): 34898334

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 113, 130, 195, 226, 339, 390, 491, 565, 678, 982, 1130, 1469, 1473, 1695, 2455, 2938, 2946, 3390, 4407, 4910, 6383, 7345, 7365, 8814, 12766, 14690, 14730, 19149, 22035, 31915, 38298, 44070, 55483, 63830, 95745, 110966, 166449, 191490, 277415, 332898, 554830, 721279, 832245, 1442558, 1664490, 2163837, 3606395, 4327674, 7212790, 10819185, 21638370]

約数ペア:

[(1, 21638370), (2, 10819185), (3, 7212790), (5, 4327674), (6, 3606395), (10, 2163837), (13, 1664490), (15, 1442558), (26, 832245), (30, 721279), (39, 554830), (65, 332898), (78, 277415), (113, 191490), (130, 166449), (195, 110966), (226, 95745), (339, 63830), (390, 55483), (491, 44070), (565, 38298), (678, 31915), (982, 22035), (1130, 19149), (1469, 14730), (1473, 14690), (1695, 12766), (2455, 8814), (2938, 7365), (2946, 7345), (3390, 6383), (4407, 4910)]