21666090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:327

約数の個数: 64

約数和(自身を含む): 54172800

約数和(自身を除く): 32506710

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 37, 74, 111, 131, 149, 185, 222, 262, 298, 370, 393, 447, 555, 655, 745, 786, 894, 1110, 1310, 1490, 1965, 2235, 3930, 4470, 4847, 5513, 9694, 11026, 14541, 16539, 19519, 24235, 27565, 29082, 33078, 39038, 48470, 55130, 58557, 72705, 82695, 97595, 117114, 145410, 165390, 195190, 292785, 585570, 722203, 1444406, 2166609, 3611015, 4333218, 7222030, 10833045, 21666090]

約数ペア:

[(1, 21666090), (2, 10833045), (3, 7222030), (5, 4333218), (6, 3611015), (10, 2166609), (15, 1444406), (30, 722203), (37, 585570), (74, 292785), (111, 195190), (131, 165390), (149, 145410), (185, 117114), (222, 97595), (262, 82695), (298, 72705), (370, 58557), (393, 55130), (447, 48470), (555, 39038), (655, 33078), (745, 29082), (786, 27565), (894, 24235), (1110, 19519), (1310, 16539), (1490, 14541), (1965, 11026), (2235, 9694), (3930, 5513), (4470, 4847)]