21893144

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1$

素因数の和:133

約数の個数: 128

約数和(自身を含む): 56246400

約数和(自身を除く): 34353256

約数列:

[1, 2, 4, 7, 8, 13, 14, 17, 26, 28, 29, 34, 52, 56, 58, 61, 68, 91, 104, 116, 119, 122, 136, 182, 203, 221, 232, 238, 244, 364, 377, 406, 427, 442, 476, 488, 493, 728, 754, 793, 812, 854, 884, 952, 986, 1037, 1508, 1547, 1586, 1624, 1708, 1768, 1769, 1972, 2074, 2639, 3016, 3094, 3172, 3416, 3451, 3538, 3944, 4148, 5278, 5551, 6188, 6344, 6409, 6902, 7076, 7259, 8296, 10556, 11102, 12376, 12383, 12818, 13481, 13804, 14152, 14518, 21112, 22204, 22997, 24766, 25636, 26962, 27608, 29036, 30073, 44408, 44863, 45994, 49532, 51272, 53924, 58072, 60146, 89726, 91988, 94367, 99064, 107848, 120292, 160979, 179452, 183976, 188734, 210511, 240584, 321958, 358904, 377468, 390949, 421022, 643916, 754936, 781898, 842044, 1287832, 1563796, 1684088, 2736643, 3127592, 5473286, 10946572, 21893144]

約数ペア:

[(1, 21893144), (2, 10946572), (4, 5473286), (7, 3127592), (8, 2736643), (13, 1684088), (14, 1563796), (17, 1287832), (26, 842044), (28, 781898), (29, 754936), (34, 643916), (52, 421022), (56, 390949), (58, 377468), (61, 358904), (68, 321958), (91, 240584), (104, 210511), (116, 188734), (119, 183976), (122, 179452), (136, 160979), (182, 120292), (203, 107848), (221, 99064), (232, 94367), (238, 91988), (244, 89726), (364, 60146), (377, 58072), (406, 53924), (427, 51272), (442, 49532), (476, 45994), (488, 44863), (493, 44408), (728, 30073), (754, 29036), (793, 27608), (812, 26962), (854, 25636), (884, 24766), (952, 22997), (986, 22204), (1037, 21112), (1508, 14518), (1547, 14152), (1586, 13804), (1624, 13481), (1708, 12818), (1768, 12383), (1769, 12376), (1972, 11102), (2074, 10556), (2639, 8296), (3016, 7259), (3094, 7076), (3172, 6902), (3416, 6409), (3451, 6344), (3538, 6188), (3944, 5551), (4148, 5278)]