20937472

素因数分解:

$2^8\times {\mathrm{17}}^2\times {\mathrm{283}}^1$

素因数の和:333

約数の個数: 54

約数和(自身を含む): 44553068

約数和(自身を除く): 23615596

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 256, 272, 283, 289, 544, 566, 578, 1088, 1132, 1156, 2176, 2264, 2312, 4352, 4528, 4624, 4811, 9056, 9248, 9622, 18112, 18496, 19244, 36224, 36992, 38488, 72448, 73984, 76976, 81787, 153952, 163574, 307904, 327148, 615808, 654296, 1231616, 1308592, 2617184, 5234368, 10468736, 20937472]

約数ペア:

[(1, 20937472), (2, 10468736), (4, 5234368), (8, 2617184), (16, 1308592), (17, 1231616), (32, 654296), (34, 615808), (64, 327148), (68, 307904), (128, 163574), (136, 153952), (256, 81787), (272, 76976), (283, 73984), (289, 72448), (544, 38488), (566, 36992), (578, 36224), (1088, 19244), (1132, 18496), (1156, 18112), (2176, 9622), (2264, 9248), (2312, 9056), (4352, 4811), (4528, 4624)]