19912314544

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{809707}}^1$

素因数の和:809797

約数の個数: 40

約数和(自身を含む): 40663535760

約数和(自身を除く): 20751221216

約数列:

[1, 2, 4, 8, 16, 29, 53, 58, 106, 116, 212, 232, 424, 464, 848, 1537, 3074, 6148, 12296, 24592, 809707, 1619414, 3238828, 6477656, 12955312, 23481503, 42914471, 46963006, 85828942, 93926012, 171657884, 187852024, 343315768, 375704048, 686631536, 1244519659, 2489039318, 4978078636, 9956157272, 19912314544]

約数ペア:

[(1, 19912314544), (2, 9956157272), (4, 4978078636), (8, 2489039318), (16, 1244519659), (29, 686631536), (53, 375704048), (58, 343315768), (106, 187852024), (116, 171657884), (212, 93926012), (232, 85828942), (424, 46963006), (464, 42914471), (848, 23481503), (1537, 12955312), (3074, 6477656), (6148, 3238828), (12296, 1619414), (24592, 809707)]