21649740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2713}}^1$

素因数の和:2751

約数の個数: 96

約数和(自身を含む): 72952320

約数和(自身を除く): 51302580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 133, 140, 190, 210, 228, 266, 285, 380, 399, 420, 532, 570, 665, 798, 1140, 1330, 1596, 1995, 2660, 2713, 3990, 5426, 7980, 8139, 10852, 13565, 16278, 18991, 27130, 32556, 37982, 40695, 51547, 54260, 56973, 75964, 81390, 94955, 103094, 113946, 154641, 162780, 189910, 206188, 227892, 257735, 284865, 309282, 360829, 379820, 515470, 569730, 618564, 721658, 773205, 1030940, 1082487, 1139460, 1443316, 1546410, 1804145, 2164974, 3092820, 3608290, 4329948, 5412435, 7216580, 10824870, 21649740]

約数ペア:

[(1, 21649740), (2, 10824870), (3, 7216580), (4, 5412435), (5, 4329948), (6, 3608290), (7, 3092820), (10, 2164974), (12, 1804145), (14, 1546410), (15, 1443316), (19, 1139460), (20, 1082487), (21, 1030940), (28, 773205), (30, 721658), (35, 618564), (38, 569730), (42, 515470), (57, 379820), (60, 360829), (70, 309282), (76, 284865), (84, 257735), (95, 227892), (105, 206188), (114, 189910), (133, 162780), (140, 154641), (190, 113946), (210, 103094), (228, 94955), (266, 81390), (285, 75964), (380, 56973), (399, 54260), (420, 51547), (532, 40695), (570, 37982), (665, 32556), (798, 27130), (1140, 18991), (1330, 16278), (1596, 13565), (1995, 10852), (2660, 8139), (2713, 7980), (3990, 5426)]