21292544

素因数分解:

$2^9\times 7^1\times {\mathrm{13}}^1\times {\mathrm{457}}^1$

素因数の和:495

約数の個数: 80

約数和(自身を含む): 52475808

約数和(自身を除く): 31183264

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 128, 182, 208, 224, 256, 364, 416, 448, 457, 512, 728, 832, 896, 914, 1456, 1664, 1792, 1828, 2912, 3199, 3328, 3584, 3656, 5824, 5941, 6398, 6656, 7312, 11648, 11882, 12796, 14624, 23296, 23764, 25592, 29248, 41587, 46592, 47528, 51184, 58496, 83174, 95056, 102368, 116992, 166348, 190112, 204736, 233984, 332696, 380224, 409472, 665392, 760448, 818944, 1330784, 1520896, 1637888, 2661568, 3041792, 5323136, 10646272, 21292544]

約数ペア:

[(1, 21292544), (2, 10646272), (4, 5323136), (7, 3041792), (8, 2661568), (13, 1637888), (14, 1520896), (16, 1330784), (26, 818944), (28, 760448), (32, 665392), (52, 409472), (56, 380224), (64, 332696), (91, 233984), (104, 204736), (112, 190112), (128, 166348), (182, 116992), (208, 102368), (224, 95056), (256, 83174), (364, 58496), (416, 51184), (448, 47528), (457, 46592), (512, 41587), (728, 29248), (832, 25592), (896, 23764), (914, 23296), (1456, 14624), (1664, 12796), (1792, 11882), (1828, 11648), (2912, 7312), (3199, 6656), (3328, 6398), (3584, 5941), (3656, 5824)]