21693420

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{1913}}^1$

素因数の和:1941

約数の個数: 120

約数和(自身を含む): 77815584

約数和(自身を除く): 56122164

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 252, 270, 315, 324, 378, 405, 420, 540, 567, 630, 756, 810, 945, 1134, 1260, 1620, 1890, 1913, 2268, 2835, 3780, 3826, 5670, 5739, 7652, 9565, 11340, 11478, 13391, 17217, 19130, 22956, 26782, 28695, 34434, 38260, 40173, 51651, 53564, 57390, 66955, 68868, 80346, 86085, 103302, 114780, 120519, 133910, 154953, 160692, 172170, 200865, 206604, 241038, 258255, 267820, 309906, 344340, 361557, 401730, 482076, 516510, 602595, 619812, 723114, 774765, 803460, 1033020, 1084671, 1205190, 1446228, 1549530, 1807785, 2169342, 2410380, 3099060, 3615570, 4338684, 5423355, 7231140, 10846710, 21693420]

約数ペア:

[(1, 21693420), (2, 10846710), (3, 7231140), (4, 5423355), (5, 4338684), (6, 3615570), (7, 3099060), (9, 2410380), (10, 2169342), (12, 1807785), (14, 1549530), (15, 1446228), (18, 1205190), (20, 1084671), (21, 1033020), (27, 803460), (28, 774765), (30, 723114), (35, 619812), (36, 602595), (42, 516510), (45, 482076), (54, 401730), (60, 361557), (63, 344340), (70, 309906), (81, 267820), (84, 258255), (90, 241038), (105, 206604), (108, 200865), (126, 172170), (135, 160692), (140, 154953), (162, 133910), (180, 120519), (189, 114780), (210, 103302), (252, 86085), (270, 80346), (315, 68868), (324, 66955), (378, 57390), (405, 53564), (420, 51651), (540, 40173), (567, 38260), (630, 34434), (756, 28695), (810, 26782), (945, 22956), (1134, 19130), (1260, 17217), (1620, 13391), (1890, 11478), (1913, 11340), (2268, 9565), (2835, 7652), (3780, 5739), (3826, 5670)]