19151715

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1$

素因数の和:228

約数の個数: 64

約数和(自身を含む): 36288000

約数和(自身を除く): 17136285

約数列:

[1, 3, 5, 11, 15, 19, 33, 41, 55, 57, 95, 123, 149, 165, 205, 209, 285, 447, 451, 615, 627, 745, 779, 1045, 1353, 1639, 2235, 2255, 2337, 2831, 3135, 3895, 4917, 6109, 6765, 8195, 8493, 8569, 11685, 14155, 18327, 24585, 25707, 30545, 31141, 42465, 42845, 67199, 91635, 93423, 116071, 128535, 155705, 201597, 335995, 348213, 467115, 580355, 1007985, 1276781, 1741065, 3830343, 6383905, 19151715]

約数ペア:

[(1, 19151715), (3, 6383905), (5, 3830343), (11, 1741065), (15, 1276781), (19, 1007985), (33, 580355), (41, 467115), (55, 348213), (57, 335995), (95, 201597), (123, 155705), (149, 128535), (165, 116071), (205, 93423), (209, 91635), (285, 67199), (447, 42845), (451, 42465), (615, 31141), (627, 30545), (745, 25707), (779, 24585), (1045, 18327), (1353, 14155), (1639, 11685), (2235, 8569), (2255, 8493), (2337, 8195), (2831, 6765), (3135, 6109), (3895, 4917)]