21915576

素因数分解:

$2^3\times 3^3\times {\mathrm{241}}^1\times {\mathrm{421}}^1$

素因数の和:677

約数の個数: 64

約数和(自身を含む): 61274400

約数和(自身を除く): 39358824

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216, 241, 421, 482, 723, 842, 964, 1263, 1446, 1684, 1928, 2169, 2526, 2892, 3368, 3789, 4338, 5052, 5784, 6507, 7578, 8676, 10104, 11367, 13014, 15156, 17352, 22734, 26028, 30312, 45468, 52056, 90936, 101461, 202922, 304383, 405844, 608766, 811688, 913149, 1217532, 1826298, 2435064, 2739447, 3652596, 5478894, 7305192, 10957788, 21915576]

約数ペア:

[(1, 21915576), (2, 10957788), (3, 7305192), (4, 5478894), (6, 3652596), (8, 2739447), (9, 2435064), (12, 1826298), (18, 1217532), (24, 913149), (27, 811688), (36, 608766), (54, 405844), (72, 304383), (108, 202922), (216, 101461), (241, 90936), (421, 52056), (482, 45468), (723, 30312), (842, 26028), (964, 22734), (1263, 17352), (1446, 15156), (1684, 13014), (1928, 11367), (2169, 10104), (2526, 8676), (2892, 7578), (3368, 6507), (3789, 5784), (4338, 5052)]