19828395

素因数分解:

$3^4\times 5^1\times {\mathrm{173}}^1\times {\mathrm{283}}^1$

素因数の和:473

約数の個数: 40

約数和(自身を含む): 35876016

約数和(自身を除く): 16047621

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 173, 283, 405, 519, 849, 865, 1415, 1557, 2547, 2595, 4245, 4671, 7641, 7785, 12735, 14013, 22923, 23355, 38205, 48959, 70065, 114615, 146877, 244795, 440631, 734385, 1321893, 2203155, 3965679, 6609465, 19828395]

約数ペア:

[(1, 19828395), (3, 6609465), (5, 3965679), (9, 2203155), (15, 1321893), (27, 734385), (45, 440631), (81, 244795), (135, 146877), (173, 114615), (283, 70065), (405, 48959), (519, 38205), (849, 23355), (865, 22923), (1415, 14013), (1557, 12735), (2547, 7785), (2595, 7641), (4245, 4671)]