21455430

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1$

素因数の和:281

約数の個数: 64

約数和(自身を含む): 53258688

約数和(自身を除く): 31803258

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 73, 97, 101, 146, 194, 202, 219, 291, 303, 365, 438, 485, 505, 582, 606, 730, 970, 1010, 1095, 1455, 1515, 2190, 2910, 3030, 7081, 7373, 9797, 14162, 14746, 19594, 21243, 22119, 29391, 35405, 36865, 42486, 44238, 48985, 58782, 70810, 73730, 97970, 106215, 110595, 146955, 212430, 221190, 293910, 715181, 1430362, 2145543, 3575905, 4291086, 7151810, 10727715, 21455430]

約数ペア:

[(1, 21455430), (2, 10727715), (3, 7151810), (5, 4291086), (6, 3575905), (10, 2145543), (15, 1430362), (30, 715181), (73, 293910), (97, 221190), (101, 212430), (146, 146955), (194, 110595), (202, 106215), (219, 97970), (291, 73730), (303, 70810), (365, 58782), (438, 48985), (485, 44238), (505, 42486), (582, 36865), (606, 35405), (730, 29391), (970, 22119), (1010, 21243), (1095, 19594), (1455, 14746), (1515, 14162), (2190, 9797), (2910, 7373), (3030, 7081)]