21639996

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1087}}^1$

素因数の和:1183

約数の個数: 72

約数和(自身を含む): 63365120

約数和(自身を除く): 41725124

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 79, 84, 126, 158, 237, 252, 316, 474, 553, 711, 948, 1087, 1106, 1422, 1659, 2174, 2212, 2844, 3261, 3318, 4348, 4977, 6522, 6636, 7609, 9783, 9954, 13044, 15218, 19566, 19908, 22827, 30436, 39132, 45654, 68481, 85873, 91308, 136962, 171746, 257619, 273924, 343492, 515238, 601111, 772857, 1030476, 1202222, 1545714, 1803333, 2404444, 3091428, 3606666, 5409999, 7213332, 10819998, 21639996]

約数ペア:

[(1, 21639996), (2, 10819998), (3, 7213332), (4, 5409999), (6, 3606666), (7, 3091428), (9, 2404444), (12, 1803333), (14, 1545714), (18, 1202222), (21, 1030476), (28, 772857), (36, 601111), (42, 515238), (63, 343492), (79, 273924), (84, 257619), (126, 171746), (158, 136962), (237, 91308), (252, 85873), (316, 68481), (474, 45654), (553, 39132), (711, 30436), (948, 22827), (1087, 19908), (1106, 19566), (1422, 15218), (1659, 13044), (2174, 9954), (2212, 9783), (2844, 7609), (3261, 6636), (3318, 6522), (4348, 4977)]