21277470

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{167}}^1$

素因数の和:345

約数の個数: 64

約数和(自身を含む): 53415936

約数和(自身を除く): 32138466

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 93, 137, 155, 167, 186, 274, 310, 334, 411, 465, 501, 685, 822, 835, 930, 1002, 1370, 1670, 2055, 2505, 4110, 4247, 5010, 5177, 8494, 10354, 12741, 15531, 21235, 22879, 25482, 25885, 31062, 42470, 45758, 51770, 63705, 68637, 77655, 114395, 127410, 137274, 155310, 228790, 343185, 686370, 709249, 1418498, 2127747, 3546245, 4255494, 7092490, 10638735, 21277470]

約数ペア:

[(1, 21277470), (2, 10638735), (3, 7092490), (5, 4255494), (6, 3546245), (10, 2127747), (15, 1418498), (30, 709249), (31, 686370), (62, 343185), (93, 228790), (137, 155310), (155, 137274), (167, 127410), (186, 114395), (274, 77655), (310, 68637), (334, 63705), (411, 51770), (465, 45758), (501, 42470), (685, 31062), (822, 25885), (835, 25482), (930, 22879), (1002, 21235), (1370, 15531), (1670, 12741), (2055, 10354), (2505, 8494), (4110, 5177), (4247, 5010)]